dunning



Feb. 28, 1933.

W. E. DUNNING DUAL CASH REGISTER Filed Jan. 18} 1930 4 Sheets-Sheet llTl v WM Jmnntoc WE. fill/willy 4 Sheets-Sheet 2 amnion WEfllumi/zyFeb.'28, 1933, w. E. DUNNING DUAL CASH REGISTER Filed Jan. 18, 1930 m maFeb. 28, 1933. w. E; DUNNING DUAL CASH REGISTER Filed Jan. 18, 1930 4Sheets-Sheet s Feb. 28, 1933. w. E. DUNNING DUAL CASH REGISTER FiledJan. 18, 1930 4 Sheets-Sheet 4 Patented Feb. 28, 1933 UNITED STATESPATENT OFFICE WILLIAM E. DUNNING, OF ALLIANCE, OHIO, ASSIGNOR TO THEMCCASKEY REGISTER I A COMPANY, OF ALLIANCE, OHIO, A CORPORATION OF OHIODUAL CASH REGISTER Application filed January 18, 1930. Serial No.421,831.

The invention relates to cash registers and more particularly to aregister having two independently operating adding and recording units.

The object of the improvement is to provide two'adding and recordingunits mounted upon a single base in which is located a cash drawer, oneof the units being adapted for receiving and totaling all of the itemsof each transaction and being so constructed that the cash drawer is notopened by the operation thereof; the second unit being adapted toreceive the totals of transactions entered on the first unit and beingprovided with a tier of keys for designating the clerk who made thetransaction, the cash drawer being arranged to be opened only when oneof said keys is depressed.

A further objectof the improvement is to provide means for operating theprinting and adding mechanism of both units by a single operatinghandle; and to provide means for preventing the record strip upon eachunit from operating when the other unit is being operated.

The above and other objects may be attained by constructing the registerin the manner illustrated in the accompanying drawings, in which Figure1 is a top plan view of the improved dual cash register;

Fig. 2, a longitudinal sectional view through the same;

Fig. 3, a perspective view of the mechanism through which the cashdrawer is automatically opened when the second unit is operated;

Fig. 4, a detail sectional view through the rear portion of one unitshowing the mechanism for operating the record strip when the unit isoperated and for preventing operation of the record strip when the otherunit is operated; and

Fig. 5, a perspective view of portions of the operating shafts of bothunits.

Similar numerals refer to similar parts throughout the drawings.

.Two adding machine units, designated generally at 10 and 11 are mountedupon a single case 12 containing a cash drawer 13.

A conical spiral compression spring 14 may be mounted in the rear end ofthe case 12 and adapted to be compressed by the rear end of the cashdrawer when the same is pushed rearward into the case, as best shown inFig. 2 and a lock plate holding member 15 may be mounted on the rear endof the drawer and provided with an aperture for receiving the bolt latchmember 16 to lock to the drawer in closed position.

The bolt 16 protrudes downward through a guide opening in the bottomplate 17 of a bracket 18 secured to the top of the case, and the bolt ispivotally connected to the rear end of a rock arm 19 secured upon a rockshaft 20 journaled in suitable hearings in the bracket 18.

The rock shaft 20 is provided with a crank arm 21 pivoted at its upperend to aconnecting bar 22 extending forward in the case, and is alsoconnected with an expansion spring 23 secured to the rear end of thecase, acting to hold the lock bolt downward in engagement with the lockplate 15.

The rear end of the lock plate is preferably beveled downward and thelower end of the lock bolt is correspondingly beveled, so that when thedrawer is pushed inward, the bolt will be pushed upward against theaction of the spring 23 until it enters the aperture in the lock plate,into which it is pushed downward by action of the same spring, and atthe same time the conical spring 14 is compressed, by the rear end ofthe drawer, so as to push the drawer forward whenever the lock bolt isreleased from the. lock plate. A

The forward end of the connecting bar 22 is pivoted to the upper arm 24of a bell crank fulcrumed on a spindle 25 carried by a bracket 26secured to the top of the case. The lower arm 27 of the bell crankextends forward under a point to which the lock releasing plunger 28 isadapted to be automatically moved when the clerks designating key on thesecond unit is depressed, as will be later described.

The releasing plunger 28 is mounted for vertical sliding operation in aguide barrel 29, wherein it is normally held upward by the coiled spring30 located around a reduced portion of the plunger between the bottom ofthe barrel and a shoulder 31 at the upper end of the reduced portion.

The guide barrel is secured in an aperture 32 in the plate 33 mountedfor sliding in a transverse guideway 34 secured to the top of the case.The bottom of the guideway and the top of the case are provided withregistering transverse slots through which the guide barrel depends.

The constructionand arrangement above described permits a limitedtransverse sliding of the slide plate 33 in the guideway, so

that the release plunger may be moved out wardly from its normalposition to a position directly over the arm 27 of the bell crank, whenthe second unit is operated, as will be later-described.

The parts are thus so arranged that by pushing the plunger 28 downward,when in the operative position, it will push the arm 27 of the. bellcrank downward and through the bar 22 will operate the releasingmechanism to withdraw and disengage the lock bolt 16 from the lockplate15, but when the plunger is shifted inward, to its normal position, itmay be pushed downward without impinging the arm 27 of the bell crankand will not operate the lock releasing mechanism. 3

Means for holding the releasing plunger 28 in its shifted or inoperativeposition may include a bell crank 35 operating upon a vertical fulcrum36secured within the case of the cash drawer, one arm 37 of the bell crankextending past the outer side of the releasing plunger guide barrel andthe other arm 38 extending laterally in rear of the bolt 39 of the lock40. v

This stopping means is so arranged'that when the stop bolt is withdrawn,the bell crank-is free to swing and permit the releasing plunger to moveoutward into operative position when the second unit is operated, asshown in Fig. 3, but that when the releasing plungeris shifted inwardtothe normal, inoperative position, the stopping bolt 39 may be operatedagainst the lateral arm 38 ofthe bell crank'and bring its rear arm 37against 7 the outer side of the barrel :29, stopping the same frombeingshifted outward interoperative position, thus preventing opening of thecash drawerif desired. 7

v The transverse shaft 42 of the first adding machine unit, indicatedgenerally at 10, is locatedadjacent to the rear side of the releasingplunger 28, the upper end of which extends upward in front of the shaft,when in the operative position, as shown in Fig. 3. 7 Upon the shaft 42is secured a rock arm 43 which nay be in'the form of a cam, so locatedthat its forward edge 44 will operate against the upper end of thereleasing plunger 28, when the same is in the operative position, andwill push the plunger downwardto actuate the lock releasing mechanism byly through the unit 10 at a point, spaced above the operating shaft 48,and has at its right-hand end a-vrocke'r arm 51 to which is pivotallyconnected a link 52 pivotally attached at its other end to the'arm 43upon theshaft 42. V y

it rocker arm 47a is fixed upon the inner or left-hand end of theoperating shaft 48 and connected by a link 46a with the rocker arm 45aupon the transverse shaft 42a located through the second unit 11.ratchet segment 53 is upon the inner or left-hand end of thecountershaft 50 and a similar segment-53a is lined upon the shaft 50a ofthe second unit and is pivotally connected, as by the link 52a with therocker arm 43a on the shaft 42a. 7

A double pawl is pivoted above the segments and 53a and normally urgedtoward theposition shown in F 5, as by a spring As the shafts 50 and 50aare rotated counterclockwise, the teeth upon the segments 53 and 53awillride over the pawls 54 which will prevent clockwise movement of thesegments until the last tooth of each segment has passed over the pawls54, atwhich time the segments may return to normal position withoutinterference by the pawls.

The sliding plate 33 is pivotally connected, by a link 56, with one arm57 of a bell crank which is fulcrumed, as at 58, upon any stationaryportion of the device, a coil spring 59 being connected to said arm andto a stationary portion of the mechanism and adapted to normally urgethe bell crank in the direction of the arrow shown in Fig. 3.

The ot Aer arm 60 of the bell crank has pivotally connected thereto abar 61, located beneath the unit li'and extended to therear end exceptas modified and described for the pur pose of the present improvement.

7 The keyboard of the unit 10 may include sin rows of keys indicatedat64, operatively associated with the usual mechanism for adding andrecording items in dollars and cents.

' The unit 11 is provided with the rows of keys indicated at 64aforrecording and adding transactions in dollars and cents and with Atoothed the row of keys indicated at 65 bearing letters or other symbolsdesignating the clerks or at tendants, and if desired, with a row ofkeys 66 for indicating the goods or subject matter of the purchases.

A plurality of levers 67 corresponding in number to the rows of typebars, is provided in each of the units 10 and 11, these levers beingpivoted as at 68 in the frame portion of each unit indicated generallyat 69. Each lever is adapted to be swung forward upon its pivot, uponthe operation of the machine, if any key'in its corresponding row hasbeen depressed.

The upturned end 62 of the bar 61 is adapted to be engagedby the lever67 corresponding to the row of keys 65 in the unit 11 where by theplunger 28 is'normally held out of the path of the cam 44 and only movedinto the path of said cam upon operation of the unit 11 after one of thekeys in the row 65 has been depressed.

As the corresponding lever 67 is moved away from the upturned end 62 ofthe bar 61, it will be seen that the spring 59 will pull the parts intoposition to bring the plunger 28 into the path of the cam 44, thuscausing the plunger to be depressed and through the bell crank 2427 andlink 22 the cash drawer is released and thrown open by the spring 14.

Each of the units 10 and 11 is provided with the usual platen roll 70mounted on the rear end of the case covering the units and in front ofthe platen roll the usual type bars 71 are operatively mounted. The inkribbon 72 is mounted on the spools 7 3 for operating around the posts 74and between the key bars and the platen roll. A type bar 71a ispreferably provided on the unit 10 for printing and adding, through theusual adding mechanism, the number of items entered into this unit ineach separate transaction. 7

A record strip roll 7 5 is rotatably mounted on a bracket 76, in rear ofthe platen roll. whence the record strip 77 passes forward over a guide78, thence under the platen roll and thence upward around the forwardface of the same between the ink ribbon and the V platen roll.

A ratchet wheel 79, on one end of the platen roll, is actuated by aspring detent 80 to rotate the platen roll a limited distance each timea record has been imprinted on the record strip by swinging theoperating handle-49, all in well known manner.

A reel 81 may be carried above the record roll as by the bracket arms 82for winding the record strip thereon as the same is unwound from therecord strip roll, and this reel may be geared to the platen roll by thebelt 83 whereby with each rotation of the platen roll the record stripis unwound from the record strip roll and wound upon the reel 81.

In order to prevent the record strip on either unit from unwinding fromits record roll when the other unit is being operated, a mechanism isprovided including a lever 84, corresponding in position with the lever67 of the key row 65 of the unit 11, and a similar lever correspondingwith the lever 67 of the type bar 71a, said levers being pivoted as at85 upon the frames 69 of the units, the lower end of each of said leversbeing normally held in engagement with the lower end of thecorresponding lever 67 as by a pull spring 848 while the upper end ofeach of the levers 84 normally'engages under the bead 86, upon the plate87 pivoted as at 88 upon the frame and having the spring detent 80pivoted thereon as at 89, the pull spring 90 normally urging the detentupward upon its pivotal point.

The usual rocker shaft 91 is provided in each unit with the rocker arm92 arranged to rock downward with each operation of the operating handle49. The bar 98 is pivoted, as at 94, upon the rocker arm 92 and normallyheld beneath the bead 86 to prevent operation of the spring detent 80. V

\Vith this construction it will be seen that the record strip roll willnot be unwound upon the unit 11, unless a key in the row of clerksdesignating keys in that unit has been depressed; nor will the recordstrip in the unit 10 be unwound unless a transaction is recorded on thatunit, which will cause the corresponding lever 67 to move inward and thelever 84 to swing outward from beneath the bead 86, permitting thepivoted plate 87 to swing downward upon its pivot as the bar 93 isdepressed by the operation of the handle.

The spring 90 will pull the spring detent 8O upward and into contactwith the ratchet 79, advancing the same with each operation of the partsas above described and as the parts return 'to their normal positions,the bar 93 will rise, moving the pivoted plate 87 and detent 80 back tothe inoperative position and permitting the lever 84 to return to itsposition beneath the bead 86.

Thus it will be seen that when either adding machine unit is operated,the record strip roll of that unit only will be unwound, the recordstrip roll of the other unit remaining stationary.

I claim:

1. A dual cash register including a cash drawer, a pair of addingmachine units of the two motion type and each provided with recordingmeans, a latch for normally holding the cash drawer in closed position,a releasing plunger for the latch, a single operating means foroperating the recording means of both units, said operating means beingarranged to also operate the plunger, said plunger being normallylocated out of position for being operated by said operating means, andmeans associated with only one-of the addingmachine units for moving theplunger into operative position when said last named adding machine unitis operated.

2. A dual cash register including a cash drawer, a pair of addingmachine units of the two motion type and each provided with recordingmeans, a latch for normally holding the cash drawer in closed position,a releasing plunger for the latch,asingleoperatingmeans for operatingthe recording means of both units, said operating means being arrangedto also operate the plunger, said plunger being normally located out ofpositionfor being operated by said operating means, a row of operatorsdesignating keys on one of the addmg machine units, and means associatedwith said keys for moving the plunger into opera ative position whensaid last named adding machine unit is operatedp 3. A dual cash registerincluding a cash drawer, a pair of adding machine units of the twomotion type and each provided with recording means, a latch for normallyholding the cash drawer in closed position, a'releasing plunger for thelatch, a single operating 7. means for operating the recording meansofcording means, a latch for normally holding the'cash drawer in closedposition, a releasing plunger 'tor the latch, a single operating meansfor operating the recordin means of both units, said operating meansbeing arranged to also operate the plunger, said plunger being normallylocated out of position for being operated by said operating means, arow of operators designating keys on one of the adding machine units,a'lever controlled by said keys, a sliding bar associated with saidlever, and means associated with said sliding bar for moving the plungerinto operative position when the last name adding machine unit isoperated.

5. A cash register including a. cash drawer, an adding machine, a latchfor normally holding the cash drawer in closed position, a releasingplunger for the latch, operating 1 means for the adding machine, saidoperating means being arranged to also operate the plunger, said plungerbeing normally located out of position for being operated by theoperating means, a row of operators designating keys on the addingmachine, alever controlledby any one of said keys, a sliding bar 7 atedwith said sliding bar normally urging the plunger toward operativeposition and for movin the plunger into operative position when theoperatingmea'nsis actuated. after one of said keys has been operated.

6. A dual cash register including a cash draweiga pairofadding machineunits, single means for operating either unit individually, means fornormallyholding the cash drawer in closed position, and means foropening the cash drawer only when one of the adding machine units isoperate YJA. dual cash register includinga cash drawer, a pair of addingmachine units, single means for operating either unit individually,means for normally holding the cash drawer in closed position, a row ofoperators designating keys on one of the adding machine units, and meansfor opening the 7 cash drawer only when one of the keys of said row hasbeen depressed.

8. A dual cash register including a cash 1 drawer, a pair of addingmachine units, single means for operating either unit individ ually, a.latch for normally holding the cash drawer in closed position, releasemeans for the latch normally located out of position to release thelatch, and means associated with only one of the adding machine unitsfor moving the release means into position to release the keys when saidlast named adding machine unit is operated.

9. A dual cash register including a cash drawer, a pair of addingmachine units, single means for operating either unit individ- LIDually, alatch for normally holding the cash drawer in closed position, areleasing plunger for the latch normally located out of-position torelease the latch, and means associated with only oneof the addingmachine units for moving the releasing plunger into position to releasethe latch when said last named adding machine unit is operated.

In testimony that I claim the above, I have hereunto subscribed my name.

VVILLIAlt il E. DUNN INGL associated with-said lever, and means associ 7

